Latitude 5550 Owner's Manual

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1. Thunderbolt 4.0 with DisplayPort Alt Mode/USB Type-C/USB4/Power Delivery

   Supports USB4, DisplayPort 1.4, Thunderbolt 4 and also enables you to connect to an external display using a display adapter. Provides data transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4.

   NOTE:You can connect a Dell Docking Station to one of the Thunderbolt 4 ports. For more information, search in the Knowledge Base Resource at www.dell.com/support.
   NOTE: A USB Type-C to DisplayPort adapter (sold separately) is required to connect a DisplayPort device.
   NOTE: USB4 is backward compatible with USB 3.2, USB 2.0, and Thunderbolt 3.
   NOTE: Thunderbolt 4 supports two 4K displays or one 8K display.
2. Thunderbolt 4.0 with DisplayPort Alt Mode/USB Type-C/USB4/Power Delivery

   Supports USB4, DisplayPort 1.4, Thunderbolt 4 and also enables you to connect to an external display using a display adapter. Provides data transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4.

   NOTE:You can connect a Dell Docking Station to one of the Thunderbolt 4 ports. For more information, search in the Knowledge Base Resource at www.dell.com/support.
   NOTE: A USB Type-C to DisplayPort adapter (sold separately) is required to connect a DisplayPort device.
   NOTE: USB4 is backward compatible with USB 3.2, USB 2.0, and Thunderbolt 3.
   NOTE: Thunderbolt 4 supports two 4K displays or one 8K display.
3. Battery-status light

   Battery-status light indicates the battery-charge status.

   • White-Battery is charging.
   • Solid yellow-Battery charge is low.
   • Blinking yellow-Battery charge is critical.
   • Off—Battery is fully charged.
4. Smart-card reader slot (optional)

   Using smart card provides authentication in corporate networks.